This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

The 30,000-volume library is one of the world's most impressive poetry collections.

This memorial plaque remembers a strangely shallow maritime disaster known as "Chicago's Titanic."

Once at the center of U.S. finance, the historic Trading Room was meticulously recreated piece by piece and rebuilt in the Art Institute.

This awkward aquarium sculpture is one of the strangest statues in Chicago.

World's largest bell sits on the grounds of the Kremlin in Moscow.

This building holds the embalmed remains of the leader of the Bolshevik Revolution.

Former headquarters of the KGB.

The gorgeous entrances into the city's underbelly look more like grand halls than subway stops.

One of the world's tallest statues is also one of its most hated.

Gargantuan home of Russian science.

An ever-growing literary collection housed in the apartment where the Russian author penned his final novel.

A vast necropolis where you'll find the elaborate mausoleums of Argentinian tango stars.

Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

This historic, palatial theater is now one of the world’s most beautiful bookstores.

These small sculptures pay homage to the lovable star of an iconic Argentine comic strip.

The final resting place of the liberator of Argentina is guarded around the clock by two soldiers.

A bright little alley in La Boca is a part of tango history.

A graceful natural rock formation stands astride the point where the Gulf of California meets the Pacific Ocean.

Legend says one of the world's largest marine geysers is actually a whale that got wedged within the rocks.

A 19th-century Baja cantina that many say is the birthplace of the margarita.

Every weekend, people gather here for a brief chance to see their loved ones on the other side of the United States–Mexico border.

Tijuana's legendary jai alai or "basque ball" palace is now a massive music venue.

A burnt orange monolithic dome structure perched on a hillside near Interstate 280.